CORE Natural Resource Management 4 — Questions and Answers
Question 1: Which federal agency is primarily responsible for managing National Forests in the United States?
- U.S. Fish and Wildlife Service
- National Park Service
- U.S. Forest Service (Correct answer)
- Bureau of Land Management
Correct answer: U.S. Forest Service
The U.S. Forest Service, part of the USDA, manages the 193-million-acre National Forest System under a multiple-use, sustained-yield mandate.
Question 2: What is 'carrying capacity' in the context of wildlife management?
- The maximum weight a habitat can physically support
- The number of animals a habitat can sustain without degradation over time (Correct answer)
- The total biomass produced in an ecosystem annually
- The number of animals harvested per hunting season
Correct answer: The number of animals a habitat can sustain without degradation over time
Carrying capacity (K) is the maximum population size an environment can support indefinitely given available food, water, shelter, and space.
Question 3: A watershed is best described as:
- A man-made reservoir used to store drinking water
- The land area that drains into a common body of water (Correct answer)
- An underground aquifer that supplies wells
- A wetland filter system along a riverbank
Correct answer: The land area that drains into a common body of water
A watershed is the entire land area from which precipitation drains to a single point, such as a river, lake, or estuary.
Question 4: Which of the following best describes the concept of 'multiple use' in federal land management?
- Allowing unlimited public access to all federal lands
- Managing land for a single dominant resource like timber
- Balancing several uses such as recreation, grazing, mining, and wildlife conservation (Correct answer)
- Transferring federal lands to state control for varied purposes
Correct answer: Balancing several uses such as recreation, grazing, mining, and wildlife conservation
Multiple use means federal lands are managed to serve a combination of purposes — timber, grazing, minerals, recreation, and fish and wildlife — without one use permanently impairing another.
Question 5: What is the primary purpose of a wildlife corridor?
- To provide a hunting zone between protected areas
- To connect fragmented habitats so animals can move safely between them (Correct answer)
- To mark property boundaries between state and private land
- To channel stormwater runoff away from sensitive habitats
Correct answer: To connect fragmented habitats so animals can move safely between them
Wildlife corridors link isolated habitat patches, allowing animals to travel, find mates, and maintain genetic diversity without crossing dangerous roads or developed land.
Question 6: Prescribed (controlled) burns are used in natural resource management primarily to:
- Destroy invasive animal species living in leaf litter
- Reduce fuel loads and mimic natural fire cycles that maintain ecosystem health (Correct answer)
- Clear land for agricultural expansion on public land
- Eliminate all standing dead timber to prevent insect outbreaks
Correct answer: Reduce fuel loads and mimic natural fire cycles that maintain ecosystem health
Prescribed burns reduce accumulated fuels that could feed catastrophic wildfires and restore fire-dependent plant communities that require periodic burning to thrive.
Question 7: Which best describes the role of apex predators in an ecosystem?
- They consume only plant matter and regulate vegetation growth
- They control prey populations and indirectly shape habitat structure through trophic cascades (Correct answer)
- They are unnecessary in modern managed landscapes
- They compete directly with human hunters for the same game species only
Correct answer: They control prey populations and indirectly shape habitat structure through trophic cascades
Apex predators regulate herbivore populations, which in turn affects vegetation, stream health, and biodiversity — a chain of effects called a trophic cascade.
CORE Natural Resource Management 4
Which federal agency is primarily responsible for managing National Forests in the United States?